Power-loom.



3 WINTER-MAYE.

POWER LOOM.

APPLICATION rum MAY 21, 1908.

1,054,734. Patented Mar.4,1913.

3 SHEETS-SHEET 1;

J.WINTERMAYR.

POWER LOQM.

I APPLICATION FILED MAY 21, 1908; 1,054,734. Patented Mar. 4, 1913.

3 SHEETS-SHEET 2.

NORRIS PETERS, INC" LHHKL. WASHINGTON. D. C.

J. WINTERMAYR.

POWER LOOM.

APPLIOATIION FILED MAY 21, 1908.

3 SHEETS-SHEET 3.

W y w A is A 270 rial/ y NORRIS PETERS lNC.. Lmm. WASHINEYON. D c

a'citizen of Austria,

V f Looms,

1 5 of? the lathes' a; removed, but --instead ofitthe disadvantage stopped zit-any point in"- its movement 'ahd .i which, especially in the L shaft operated indirectly from the driving ating mec'hanism of the loominisu'eh'manner :brake or friction brake, or,' 'as,i n' the pre that'on the disengagement of said actuating gferred formyan electi'mn agnetie brake. I It lnechainismyeitlier'automaticallyior by hand', gep'nsists of a fixed part carrying: the illus throughanypausewhatever, the said brake fggated electrofma'gnetsf through :which is i mechanisn1;';1s instantly and auto11iati'cal;1y reel)? passed the shaft- 5,and-'of a part :mov brought into actionst-opping the lathe act'u able on'the sh-a'ftfiand rotatable therewith, 9e atingshaft initspositiona t that'inomjent ,jvhich 'pa'rtcarries the airiiiatures. By ex a A It is ofadva'ntage' to provide the'drivin 1, oitingthe 'electro-magnets, the armat'ures are ine'ans wit'h an. electromagnetic cli'itchandi attracted a'ntl'thefl shaft braked. The also to construct tlfiefbrake acting" onlthe vindin'gs ofytliegbrak 11,2"are connected lathe actuatingshaft'as an electro-magnetio ;throug"li ais'w'itch with the windings of the 95 40 clntch,-si1ice'jtl1 us,'bythe'zirrangementofTa elect-ro-lnag'netic clutch ,andja source of simple s'witqli,'onpthe'release of the driving currentiii such away that breaking the clutclnthe Bi-a'ike canbe caused to operate. clutch circuit the brake circuit is closed and In the"aoompanyingdrawings; sh wing, ivice versaa \Yhen the brake circuit is one embodiment of my invent-ion, Figu'rel closedpthe rotating pa-rt of the brake presses 100 is 'an endeleva'tion'of Ia 100111 in w'hich'the on the'ffixed' partand the shaft 5 is held lifting of' the latheis' eflected by lever-stand" against further rotation and; through the cams. 'l ig.Q'iisI'apIanv of the drivingsha-fts said connect on of theshaft 5 v ththe lathe Figs. 3, 4111x115 are enlarged detai 'ews 11':,'the latter s held n Its positiomwhether of] the switch mechanism for ,'operating it was rising 0r falling.v a a 105 the clutchesfi'iFigs; 6 enlarged Upon the disengagement of the clutch 2 detail vievvs v-oftheswitch-operating inecha- {oniffsliaft l, ho vever, the part 1 2f, of the nism actuated by the feelerl is an jclii't ch l 2, \'\"hich part formed as'an electroenlarged de'tail vievv of the mefohanism' premagnetie.j brake, will; be automatically venting t-helathefrom swinging out too far. thrfoivnifito operation-to.- stop shaft p The To-all whom it concerns 4 1 '3 gosns wn trn'ameyjnj on LViIENNA, AUSTRIA HUhTGARY. 1

a i w momf lsipeeifiea t ioiifot Lettersfatent.

if 1 Patente d hiarat, 1 91 v f I vApplication filedjMay 21, 1903. Serial No. 434,040.

.Be it known "that I, JOSEFjWlNTERMAYR, residing at Vienna'fln the Province of Lower-"Austria and Empire I of; Austria-Hungary, have invented certain newand useful- Improvements in Power,

of Whioh the following-is aspecificat-i011. 1' HI f m-At present there-are used for thejneehanical: production-of fabrics-two classes, of power looms; one havingtpositive;movement andothers having freelytfall- 1 ing lathes. Looms-of the-"former class have the disadvantage that the warp "threads" are excessively-subjected to a strain while in the latter type of loom this disadvantage is is found that the? falling. lathe 'cannot be especially not in ,itsrdoW-nward' movement: This results innnmeious 'faults'in weaving manufacture-of Wire cloth; forwhich this inventionis'jimainly intended, are very objectionable: -My' invention consists in the arrangement of abrake mechanism on the lathe; actuating shaft which is made dependenton the 'aetu- Fig. 9 is a diagram ofthe' eleetrie-geii c iitifor; the same. y

Ac'coz din 1 carnesan arm 6', whosexfr the la the 11'.

ment swings back a position and beats up the last passed shot of the fabric On shaft 5 ismofunted thelbrak 1 ing device 12, which may. be either, purely springis transmitted to the intermediate which transmits motion to the'shaft 4 for driving the shedding mechanism of thelooni and tothelathe'actuating shaft-T5; a

g'tofl Figs. -1 and the shaf t 5 I p ee end comes into the path of a roller 7, which is carried by a disk '8 mounted 'on the son rocked with itonce and the shaft 5 turned througha predetermined angle and then released "roeking movement, saidarm beingiconnected by a The 'angle about 1 "which the shaft 5 is turned on rotation of'the shaft and the lengthof the arm -9 "determine the .l/Vhen the-arm 6 is restroke of the lathe. leased by the roller I g the lathe brohght out of its vertical positio' by the previous move- 'galn' into the starting inechanicahg' g. a block. brake;

disenggg ement of the olutc h 2 on shaft 1 xi ndi'it wperatioh the' brake clutch 12 From the main shaft vvhieli is'driven v r t t'inuously driven shaft?) in such a manner that-"for every eompleterevolutionlofthe'shaft 3' the arm fiis :A. second arm'Q mountedfon the shaftf5 takespal-tin this ,F IC

through an felectro fmagnetic clutch. 2, power shaft 3 '1ink'10l with i take place the following cases :-1, when the machine is to ,be stopped by hand for ment 22. This segment has two projections 23, (one only being shown in the drawlng) one of WhlCll at a time engages a weighted lever-24 provided with a curved slot 25 and loosely'mounted on the shaft 21.

-The curved slot'25 is engaged by a pin 26, which is connected by a lmk 27 with a. switch bar 28. A switch 29 carried by the latter connects, according'to its position,the middle contact a of the three contacts, a, b, c, which is connected with the source of current,with one or the other of'the contacts 6 or c of which the one (6) leads current to the driving clutch 2, the other (0) to the brake clutch 12'.

According to the position of the parts shown in Fig. 3, the-machine is in motion and the clutch 2 engaged. When the bar 18 is moved toward the right in Fig.3, the segment 22 first raises the wei hted lever 24,

,. which, as soon as it has over alanced, falls (Figs. 6 and 7) toward the-other side, and toward the end of its movement carries with it the pin 26, the switch 29 being thereby suddenly shifted so thatthe circult through I) to the driving clutch- 2 is opened and the circuit through c to the brake clutch 12' closed. ,On the return movement of the stop motion bar 18 (toward the left in Figs. 3 and 5), for the purpose of throwi in the clutch 2, the tilting of the weighte lever 24 in the reverse direction and the movement of the switch '29 is suddenly efiected,whereb sparking is avoidedand positive shifting om oneend position to the other is effected. The actuation of the two clutches 2 and 12 also takes place in the manner described, when from any" cause whatever the shuttle is locked in the shed.

On the lathe 11 is mounted a feeler 31 which, together with the pawl 32 is pivoted upon in 33 and is weighted at one side. 1 In t e loom frame and beneath the pawl 32 is movably mounted a rack 34, the upper side of which next the pawl is formed to correspond to the path described by the point of the pawl upon the movement of the lathe. The rack is con-. trolled by a springl35 and carries a project ing pin 39. On t e frame is pivoted upon a pm 36 a weighted lever 37, which carries a projection 38.

The wei hted lever is also connected with the switc -bar 41 by a link 40, which bar 41 carries the contact piece 42 raised and the projection 38 lies behind the pm 39 of the rack 34. The contact piece 42 connects the contacts a, b for the driving circuit. When the shuttleordinarily is held in the shuttle box, the pawl 32 passes freely over the teeth of the rack 34. If, however,

the shuttle. is not in the shuttle box, the

movement of the .fee'ler 31 against the shuttle box causes'the lowering of the pawl 32, which now engages/in one of the teeth of the rack 34. In this case, owing to the movement of the falling lathe, the rack 34 is moved while compressing the spring and the weighted lever 37 is thereby released from the pin 39; The weighted lever is now to drop and thereby move the bar 41 so that the contact 42 interrupts the circuit of the driving clutch 2 .at ,b' and closes the circuitof the brake 12 at [0. The dimensions of the weighted l'ever'37 are-such that the opfree A eration takes place, even' if the rack 34 is moved only very littleunder the pressure of the lathe. If the pawl 32 is released from I the rack 34 and'the weighted lever 37 again raised, the rack 34 is returned by its spring 35 to its normal position, in which .it retains the weighted lever in its raised position. In order to prevent this, a cushioning device .(Fig, 8) is provided, which shifts the two clutches 2 and 12'. This consistsof a buffer 43, mounted in the frame, one end of which -lies in the path of oscillation of one of the projections 44 on the lathe, while on the other side is mounted a depending lever 45 with an adjustable screw 46, the hookshaped second arm .47 of which engages the pin 48 on a weighted lever 49 and thus holds the latter in raised position. The weighted lever 49 is connected by links 50 with the switch-bar 52 carryin the switch 51. If the lathe swings too ar back, its projection 44 presses back the buffer 43, which moves the depending lever 45, 47 in such a manner as to release the pin 48 on the weighted lever 49. The latter dropsa'nd thereby shifts the switch 51 connecting the driving clutch 2 with the conductor (through 6 (1 so that it now connects the contact a connected by the source of current with the contact a for :the brake clutch 12. By raising the Weighted'lever 49 the switch is returned to its normal position. In order to, operate this arrangement upon the breakage of a warp thread, the usual warp thread controller is used, which cqnsists of bars 53, insulated from the frame and presenting one-pole, which, like the frame, 1s connected to a source of current, the circuit of which is closed by the breakage of a warp thread, which represents the second pole, on dropping on one of the bars .53.

each switch was separately connected to the current conductor and to the two electromagnetic clutches. It is advantageous, how ever, to supply the whole of the circuit-terminals with a current from a common source, which is obtained by the system of wiring shown in Fig. 9. In this figure S and R represent the two conducting wires, 2 is the driving clutch and 12 the brake clutch, while A, B, C and D represent the four switches in the order previously described.

As is clear, the clutch 2 is connected by a wire 8 with the conductors and in succession ('throughthe terminals Z), a, b, a, 6 a 6 01 of the'switches A, B, C, D) with the return wire R. The actuation of any ,one of the switches must as a consequence, .cause the interruption of the circuit through the clutch 2. Electro-magnetic windings of the brake-clutch 12 are connected, on the one hand, by the wire 2 with the current supply S and on the other hand connected with the second wire it in arallel are the contacts a, c, 0 c of the f dur switches A, B, C, D. As these contacts are not normally in the circuit, the clutch 12 remains inoperative, but is actuated whenever anyone of the switches is shifted.- In order to actuate the switch connected to the warpthread controller, an auxiliary source of cur rent (not shown) is used, which actuates a solenoid54, the core of which acts through a link 55 and lever 56 on the bar 58 carrying the switch 57. It is evident, that in this manner simultaneously with the automatic or intentional stoppage, of the loom the braking device is thrown automatically into operation to hold the lathe in the posltion, in which it is at that moment. In order to set the loom in motion again, only the hand switch is used. It is, therefore, a rule, after the automatic stoppage of the loom, first, to throw out the hand switch and then, after remedying the defect, to return the automatic switch which is operative for the time being, after which the loom is started by actuating the hand switch.

I claim 1. In a power loom with a freely falling lathe the combination with the lathe and the main driving-shaft, of an actuating shaft for the lathe operated indirectly from said driving-shaft, an electro-magnetic brakingdevice on said actuating-shaft, -an electromagnetic clutch on said driving-shaft, a common circuit for said braking-dev1ce and said clutch, a switch in said circuit adapted to throw in said clutch while throwing out said brake and vice versa, and means connected with said switch for effecting a rapid shifting thereof.

2. In power looms with a freely falling lathe, the combination with a .latheactuating shaft, of a driving mechanism including an electro-magnetic clutch, an electromagnetic brake for said lathe actuating shaft, a source of current, a common circuit for said clutch and said brake, a switch arranged in said circuit so as to alternately connect said clutch and said brake with the source of current, a freelyn movable weighted lever having a curved slot, apin engaging said slot and connecting said lever with said switch, a segment having projections adaptr ed to act on said lever, the said switch being caused by said lever to either connect the said clutch or said brake with the source of current, while disconnecting the other.

3. In power looms with a freely falling lathe, the combination with a lathe actuat ing shaft of a driving mechanism including an electro-magnetic clutch, an electro-magnetic brake, a source of current, a common circuit for said clutch and said brake, a switch to connect the windings of the electro-ma-gnets either of the clutch or the brake Zwith the source of current while disconnecting the other, a movable rack-bar, a weight- I g n ed lever formlng a connecting link between said rack-bar and said switch, a pawl piv-- oted on the lathe and adapted to engage said rack-bar and a feeler connected with said pawl and adapted to enter the shuttle box in case the shuttle fails to be properly boxed.

4 In power looms with a freely falling lathe, the combination with a lathe actuating mechanism of a driving mechanism including an electro-magnetic clutch, an electro-magnetic brake, a source of current, a common circuit for said clutch and brake, a switch A arranged in said circuit, a start and stop-motion bar, a freely movable weighted lever having a curved slot, a segment having projections adapted to act on said lever, a pin working in said slotand connecting said lever with said switch A, a current conductor, a switch C connecting either the said clutch or the said brake with the said current conductor while disconnecting the other, a projection on the lathe, a buffer in the path of movement vof the lathe, a depending lever arranged in the path of said buffer and a weighted lever connecting said depending lever and said switch C for the purpose set forth.

In testimony whereof I have atiixed my signature in presence of two witnesses.

J OSEF WINTERMAYR.

Witnesses Wxnnnmr BERGER, ROBERT W. HEINGARTNER. 

